Live › vulnerability › CVE-2025-43520
Go to dashboardApple's watchOS, iOS, iPadOS, macOS, visionOS and tvOS have a classic buffer overflow that lets a malicious app crash the system or write kernel memory. CISA reports active exploitation in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apple Multiple Products | vendor | – | – |
| apple ipados | vendor | < 18.7.2 | 18.7.2 |
| apple ipados | vendor | = 26.0 | – |
| apple iphone os | vendor | < 18.7.2 | 18.7.2 |
| apple iphone os | vendor | = 26.0 | – |
| apple macos | vendor |
| >= 14.0, < 14.8.2 |
| 14.8.2 |
| apple macos | vendor | >= 15.0, < 15.7.2 | 15.7.2 |
| apple macos | vendor | = 26.0 | – |
| apple tvos | vendor | < 26.1 | 26.1 |
| apple visionos | vendor | < 26.1 | 26.1 |
| apple watchos | vendor | < 26.1 | 26.1 |
Unknown from the sources.
Update Apple devices to the latest OS release per Apple's security notes; CISA points to vendor mitigations, and the exact fixed versions are not in the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain a classic buffer overflow vulnerability which could allow a malicious application to cause unexpected system termination or write kernel memory.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2025-43520")
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